I created my game using flash pro and i have been testing it with my smartphone and it's size is 480x800. So i set the document size in the FLA file as 480x800.
But I'm wondering if my app will automatically adjust its resolution to fit other sizes such 1280x720 and 960x640.
If not, how can I make it so that it automatically adjusts its resolution to fit the size of any smartphone as much as possible but without losing 480x800 ratio. So I would expect little bit of empty spaces on any side of the other smartphones. Or i guess i could make the background picture a little bit "extra" bigger than 480x800?
oh and my smartphone is LG Android
if you maintain aspect ratio, the letter box you get on a non stage ratio device will default to your stage background color.
Keep in mind that things that will be invisible on "optimal" ratio device (for example, objects you only bring on stage later, but are outside of the currently visible stage space)
might become visible on others.
So think of a applying a mask or traverse The displaylist for objects that are outside and make them invisible.